IS220YDOAS1A – Discrete Output Pack

The IS220YDOAS1A is a high-performance Discrete Output Pack from General Electric, developed for use within the GE Mark VIe control system. It is engineered to provide fast, reliable switching of 24V DC discrete outputs, making it ideal for interfacing with solenoids, relays, contactors, and other field devices in power generation and process automation systems.

This output pack is mounted on compatible terminal boards such as STCA, STCI, or TBCI, and provides up to 12 individually isolated discrete output channels. Each output supports current sinking, with protection circuitry for overcurrent and thermal shutdown. The module features onboard diagnostics, including open circuit detection and status monitoring via LEDs, ensuring enhanced maintainability and operational awareness.

The IS220YDOAS1A communicates through IONet, GE’s proprietary Ethernet protocol, which provides real-time data exchange and high-speed synchronization with the system controller (UCS). It includes dual RJ-45 ports for redundant network connections, enhancing reliability and minimizing downtime.

The IS220YDOAS1A is a critical component within the GE Mark VIe Distributed Control System (DCS), specifically designed to manage and execute discrete output operations with exceptional precision and reliability. As part of GE’s cutting-edge control architecture for gas turbines, steam turbines, and power plant auxiliary systems, this pack serves as the interface between the digital control system and physical field devices.

Designed for industrial-grade environments, the pack operates over a wide temperature range and is built with robust mechanical and electrical insulation standards. It also supports hot-swap capability, allowing replacement without system shutdown—crucial for mission-critical operations in gas turbines, steam turbines, and balance of plant (BoP) systems.

Key Features:

• 12 discrete output channels (24V DC)

• Individually isolated current-sinking outputs

• Compatible with GE Mark VIe control system

• Built-in diagnostics and LED indicators

• Dual Ethernet ports for redundant IONet connectivity

• Supports hot-swap and easy field replacement

• Overcurrent and thermal protection circuitry

• Compact and rugged design for industrial environments

• Suitable for turbine control and industrial automation

• Enhances system reliability and maintainability

Contact Information

Spy Eye Technology
📞 Phone: +91 9911645145
📧 Email: support@techyhussain.com